Characteristics Of Medium Research Articles

Numerical Investigation of Transmission and Sealing Characteristics of Salt Rock, Limestone, and Sandstone for Hydrogen Underground Energy Storage in Ontario, Canada

With the accelerating global transition to clean energy, underground hydrogen storage (UHS) has gained significant attention as a flexible and renewable energy storage technology. Ontario, Canada, as a pioneer in energy transition, offers substantial underground storage potential, with its geological conditions of salt, limestone, and sandstone providing diverse options for hydrogen storage. However, the hydrogen transport characteristics of different rock media significantly affect the feasibility and safety of energy storage projects, warranting in-depth research. This study simulates the hydrogen flow and transport characteristics in typical energy storage digital rock core models (salt rock, limestone, and sandstone) from Ontario using the improved quartet structure generation set (I-QSGS) and the lattice Boltzmann method (LBM). The study systematically investigates the distribution of flow velocity fields, directional characteristics, and permeability differences, covering the impact of hydraulic changes on storage capacity and the mesoscopic flow behavior of hydrogen in porous media. The results show that salt rock, due to its dense structure, has the lowest permeability and airtightness, with extremely low hydrogen transport velocity that is minimally affected by pressure differences. The microfracture structure of limestone provides uneven transport pathways, exhibiting moderate permeability and fracture-dominated transport characteristics. Sandstone, with its higher porosity and good connectivity, has a significantly higher transport rate compared to the other two media, showing local high-velocity preferential flow paths. Directional analysis reveals that salt rock and sandstone exhibit significant anisotropy, while limestone’s transport characteristics are more uniform. Based on these findings, salt rock, with its superior sealing ability, demonstrates the best hydrogen storage performance, while limestone and sandstone also exhibit potential for storage under specific conditions, though further optimization and validation are required. This study provides a theoretical basis for site selection and operational parameter optimization for underground hydrogen storage in Ontario and offers valuable insights for energy storage projects in similar geological settings globally.

Portrayal and Transformation: Analyzing the Representation of China’s Rural Left-behind Children in State Media Discourse

Through the portrayal of rural left-behind children in Chinese state media, this study investigates the evolution of narratives and the societal consequences. The research seeks to uncover its media depiction of left-behind children and how these constitute cultural and policy priorities. A Systematic Literature Review (SLR) was carried out using a qualitative research approach in order to analyze 20 peer-reviewed studies. Thematic analysis highlighted major shifts in media narratives moving from early portrayals that favored the idea of material deprivation to the more recent narratives that revolved around behavioral and psychological challenges. Visual and linguistic techniques of media encourage empathy and the alignment of narratives with family responsibility and resilience often detract from the realities of systemic problems such as rural to urban inequalities. Differences between the state media and the independent media are highlighted in cross cultural comparisons, Chinese state media emphasizes social harmony and policy alignment, while independent media features systemic critiques. The study’s findings highlight the role of media in helping to form societal values and bolstering policy objectives. More balanced narratives, which integrate systemic critiques, are needed for deeper public awareness and policy reform, as well as scholarly understanding and practical strategies for media practitioners and policymakers.

Induced polarization monitoring of in-situ chemical oxidation for quantification of contaminant consumption.

Dynamic monitoring of in-situ chemical oxidation (ISCO) of LNAPLs in groundwater is the foundation for evaluating remediation effectiveness. In this study, spectral (SIP) and time-domain induced polarization (TDIP) measurements are conducted in laboratory columns and sandboxes to monitor the ISCO of LNAPL for characterizing oxidant transport and quantifying contaminant consumption under different injection strategies. To support the interpretation, this was combined with total petroleum hydrocarbon (TPH), hydrochemistry and computed tomography (CT) measurements. Experiments were performed using two media, and the monitoring results showed similar variations in key parameters. The electrical resistivity, chargeability and TPH decreased significantly during ISCO remediation, while the hydrochemical parameters showed an increasing trend. Specifically, IP variations before and after injection revealed that more oxidant remained in the source area using a multiple-injection strategy compared to a single-injection strategy. The effect of contaminant consumption under well-controlled conditions on electrical resistivity was <3% and the effect on chargeability was <8%. In conditions with oxidant migration, the effect of oxidant on the resistivity and chargeability was similar at ∼89% in the source area, whereas the oxidant had a greater effect on the resistivity (>58%) than the chargeability (<40%) outside the source area. Based on the experimental results, a conceptual model for the IP response during ISCO remediation is proposed and we delineate the pore structural characteristics of porous media based on the conceptual model. Oxidant injection develops a high conductivity environment and causes a decrease in LNAPLs content and number of interfaces, leading to the suppression of the IP response. In conclusion, IP measurement in combination with supporting information clearly enables the characterization of the ISCO remediation of LNAPLs in groundwater and facilitates the pore structure characterization of porous media based on the IP conceptual model.

Features of digital media which influence social interactions between adults and children aged 2–7 years during joint media engagement: A multi-level meta-analysis

Features of digital media which influence social interactions between adults and children aged 2–7 years during joint media engagement: A multi-level meta-analysis

The Use of Social Media in Promoting Outbound Tour Packages at PT. Dwidaya World Wide Makassar

This study aims to: 1). Determine the implementation of social media in promoting outbound tour packages at PT. Dwidaya World Wide Makassar, 2). Knowing the advantages and disadvantages of PT. Dwidaya World Wide Makassar in promoting outbound tour packages. In this study, the data collection technique uses direct communication by asking questions to the resource persons to get information or data. Then a written question related to this research was prepared. Data was collected using qualitative methods: interviews, documentation, and data analysis. The results of the study show that, PT. Dwidaya World Wide implements Facebook and Instagram social media to promote outbound products and tour packages by utilizing social media features. In increasing the promotion of outbound tour packages through social media @dwidaya_tour utilizes Facebook and Instagram features such as photo posts, videos, followers features, hashtags, captions, likes, comments and shares. This feature plays an important role in carrying out promotional activities and building interaction with followers so that it can form more effective promotions. In promoting outbound tour packages, of course, there are advantages and disadvantages on PT. Dwidaya World Wide. The advantages are a large selection of tour packages, a verified Instagram account, a large number of followers and consistency in uploading posts. The disadvantages are that the use of features has not been maximized, the interaction between followers and admins has not been maximized, there are no testimonials and guest documentation. There are several weaknesses of PT. Dwidaya World Wide is no guest travel documentation or testimonials, neither photos nor videos, more featuring templates.

“Desiring a puppy-like lover”: older women and younger men romantic TV dramas and Chinese postfeminism

ABSTRACT Older Women and Younger Men Romantic TV dramas, which center on the love story between an older woman and her younger lover, have emerged as a popular television genre in China in recent years. Using textual analysis as its methodology, this article examines two examples of this genre—Falling into You (2022) and Love the Way You Are (2022)—focusing on three key aspects of these dramas: their potential redirection of heterosexual women viewers’ ambitions for career success toward desires for heterosexual romance, their celebration of women’s sexual agency within the framework of chaste heterosexual love, and their incorporation of individualist, collectivist, and nationalist ideologies. The article argues that these dramas are exemplary of Chinese postfeminism, which intertwines progressive and regressive elements and both shares similarities with and diverges from its Western counterpart due to the influence of Chinese reality and history. Based on this discussion, the article aims to illustrate the recent characteristics of Chinese postfeminist media, particularly its tendency to cloak regressive elements in progressive claims, as well as the “nuanced interconnections” between Chinese and Western postfeminism.

Digitalisasi Dakwah: Strategi Pelatihan Media Sosial bagi MUI Kabupaten Mojokerto untuk Pemberdayaan Dai dalam Dakwah

The digital da’wah training program is part of a community service initiative aimed at empowering da’is to utilize social media as an effective platform for Islamic preaching in the digital era. This program is designed to address challenges such as low media literacy and the spread of hoaxes by equipping da’is with practical skills to create creative, informative, and engaging content. The training materials cover strategies for using digital platforms such as Instagram, TikTok, and YouTube, producing high-quality content, and techniques for enhancing audience interaction through social media features. As a result, participants are able to develop the ability to create da’wah content that is effective, relevant, and aligned with the needs of the community. This program is expected to serve as a sustainable step in promoting a moderate and peaceful Islam through innovative digital approaches.

Molecular Phylogenetic Relationships and Cultural Conditions of Calocybe indica

Calocybe indica known as a milky white, indigenous and medicinally important edible mushroom. The cultural conditions, molecular identification, and phylogenetic relationships of selected strains of Calocybe indica were examined. The optimal temperature for mycelial development was found to be 30°C, whereas the lowest growth occurred at 15°C. The most favorable growth occurs at a pH of 5. Based on the growth characteristics of various culture media, potato dextrose agar proved to be the most advantageous, while Hennerberg and Czapek Dox media were less suitable. Molecular identification and the phylogenetic relationships of the chosen IUM strains of C. indica were examined through their ITS and RAPD analyses. The selected strains of C. indica had total sequence lengths of ITS1, ITS2, and 5.8S rDNA ranging from 570 to 620 bp. The sizes of the ITS1 and ITS2 regions vary among strains, with ITS2 showing greater variety than ITS1. All strains contained identical 5.8S rDNA sequences, according to sequencing analysis. Eleven out of the twenty arbitrary 10-base oligonucleotide primers utilized to amplify genomic DNA segments for the chosen C. indica strains were effective. RAPD-PCR resulted in distinct multiple products, demonstrating significant variability among the strains assessed. The quantity of amplified bands differed based on the primers utilized or the strains evaluated. The DNA polymorphisms displayed consistent traits in the replicated trials. Thus, it can be concluded that ITS sequencing and RAPD methods were effective in identifying the genetic diversity of the chosen strains of Calocybe indica. Plant Tissue Cult. &amp; Biotech. 34(2): 205-216, 2024 (December)

Modeling and prediction of loading characteristics of electret filter media for charged PM2.5

Modeling and prediction of loading characteristics of electret filter media for charged PM2.5

The study of dust-holding characteristics of pleated non-uniform porous media: Macroscale simulations

The study of dust-holding characteristics of pleated non-uniform porous media: Macroscale simulations

Pore-scale modeling of biofilm formation and biofilm-induced anomalous transport features in heterogenous porous media

Pore-scale modeling of biofilm formation and biofilm-induced anomalous transport features in heterogenous porous media

Internally diketopyrrolopyrrole-bridged bis-anthracene macrocycle: a multifunctional fluorescent platform.

A covalently bridged macrocycle (5) comprising two anthracene strands connected at the lactam positions of a diketopyrrolopyrrole (DPP) chromophore has been constructed. The crystal structure reveals that the central DPP chromophore is wrapped with the externally twisted bis-anthracene macrocycle. The internally bridged macrocycle architecture endows 5 with multifunctional properties. Due to shielding by the double anthracene straps, 5a and a polymer derived from it, DPP-Cycle, display strong fluorescence emission features in both organic media and the solid state. Moreover, the emission colors of these macrocyclic materials can be effectively tuned through external stimuli such as mechanical and thermal treatments, as well as solvent fuming. Compound 5a is stable in the presence of most metal cations but degrades rapidly when it comes in contact with Cu2+ in acetonitrile. This decomposition, which is thought to involve a reaction at the central DPP via a radical-mediated mechanism, was found to be accelerated in 5a compared to the non-cyclic analogue 2a. This leads us to suggest that internally bridged macrocycles, such as those described here, may have a role to play as fluorescent Cu2+ sensors. Finally, the high fluorescence of 5a in the solid state enables its use in the area of latent fingerprint (LFP) imaging.

Analyzing A24’s Successful Promotion of Moonlight Based on Precision Marketing Strategies

This research examines the strategies utilized by A24 to effectively merge conventional advertising with social media to promote the independent film Moonlight, attaining both economic and artistic success. In the modern digital media landscape, marked by swift changes, independent films often face challenges in achieving prominence in the mainstream market. This is mostly attributable to constrained resources and specific target demographics. This study conducts a comprehensive analysis of A24’s marketing strategy, emphasizing the company’s innovative integration of traditional media, such as cinema trailers and television advertisements, alongside social media platforms like Twitter and Instagram, aimed at expanding audience reach. This study, which combined current literature and a case study analysis, determined that A24 successfully combined the extensive influence of conventional media with the individualized, interactive characteristics of social media. This strategy markedly improved audience engagement, fostered cultural relevance, and optimized market visibility. The study indicates that the amalgamation of conventional and digital marketing tactics might effectively assist independent films in surmounting resource constraints, offering a significant framework for future independent film marketing strategies and industry practices.

국악교육을 위한 에듀테크의 음악적 활용 방안 제언

This study proposes ways to use Edutech for the purpose of traditional Korean music education. First, the teaching and learning methods presented in the music and education curriculum were structured to select Edutech that reflects the characteristics of Korean traditional music education. Moreover, the large number of digital tools used in music education were categorized into three types: “interaction and collaboration,” “Western music activities,” and “traditional Korean music activities.” Among them, we examined the characteristics of traditional Korean music education media in detail and used Edutech in traditional Korean music classes. In particular, in the areas of singing and creation, we sought strategies for using Edutech to enhance students’ musical abilities through experiences that reflect traditional Korean music elements (e.g., “gayageum app byeongchang,” “tori garak performance and creation,” and “jangdanggol creation”) using digital tools. We hope that through this article, Edutech that focuses on the essential goals of traditional Korean music education will be activated and help carry out meaningful traditional Korean music activities.

Optimalisasi Keterampilan Digital Guru SD Islam Terpadu melalui Pelatihan Pemanfaatan Aplikasi Canva untuk Media Pembelajaran Kreatif

The increasing demand for innovative and interactive learning media in education highlights the importance of enhancing teachers' digital competencies. This community service program, conducted under the Community Partnership Program (PKM), aimed to improve the digital skills of teachers at Integrated Islamic Elementary Schools in Pamekasan, particularly in utilizing Canva to create engaging and effective learning materials. The primary challenge identified was the low proficiency of teachers in using technology for developing creative and up-to-date media. To address this, a participatory approach was employed, combining theoretical instruction with hands-on practice. The training was implemented in stages, starting with basic hardware literacy and progressing to the application of Canva features for classroom-appropriate learning media. Strategies included providing training modules, live demonstrations, and group discussions to foster collaborative idea-sharing. The program's outcomes revealed a significant improvement in teachers' digital competence. Pre- and post-training assessments demonstrated an increase in hardware proficiency from 57.4% to 73.4%, alongside notable enhancements in Canva-related skills, such as creativity, usage frequency, and diversity of learning materials produced. Despite challenges posed by the limited digital literacy of senior teachers, the program successfully equipped participants with the skills to develop more engaging and diverse digital learning resources, ultimately fostering greater student participation and motivation..

Transforming Social Movements: Jogja Ora Didol’s Use of Information and Communication Technology

ICT as a communication transmission tool has long been a strong factor in shaping political mobilization in many social movements in various social and political events in the world. This research aims to describe the Jogja Ora Didol (JOD) movement in utilizing Information and Communication Technology (ICT). JOD is a movement resisting the bad impact of Yogyakarta’s development policies since 2013. Using the case study and employing secondary data, the investigation was conducted on the JOD’s social media, such as Facebook, Instagram, X (Twitter), and YouTube. We analyzed the utilization of social media in JOD’s movement from some of the features, contents, strategies, messages, and receivers. We also analyzed its impact on offline movement. As a result, we found several findings. First, JOD exploited the features of social media in developing the attractive movement’s strategy. Second, JOD creates a deliberating public space by encouraging anyone to join their movement. Third, the form of participants’ support is according to their capacity and capability. Fourth, JOD used social media to connect online and offline movement agendas. As the impact, fifth, the JOD’s engagement, agenda, and network become strong. In conclusion, we argue that these findings contribute to the current debates between ICT and social movements

Karateristik Media Penyiaran TVRI Medan dalam Membangunkesatuan di Sumatera Utara

This article uses qualitative research with a content study approach to analyze the characteristics of the TVRI North Sumatra broadcast media and its role in forming and strengthening unity in Medan, North Sumatra. This study aims to explore information about programs, news, and the social impact of content broadcasted by TVRI Medan. The data collection techniques used in this study were content analysis and in-depth interviews with TVRI Medan personnel. Content analysis was used to examine the various types of programs broadcasted, as well as to assess the diversity and quality of information provided. In-depth interviews were conducted to gain deeper insight from TVRI Medan staff and personnel regarding the program creation process and its impact on viewers. The data analysis technique used was thematic analysis, which focused on identifying the main themes in the broadcast content, and how these themes can influence viewers and play a role in strengthening unity and togetherness in the North Sumatra community. Data obtained from content analysis and interviews were analyzed to find the relationship between broadcast programs, local cultural diversity, and their impact on public perception. The results of the study indicate that TVRI Medan plays a significant role in promoting local culture, as well as acting as a means to strengthen unity in society through the delivery of information and entertainment

Популяризация научного знания в медиасреде: позитивные и негативные аспекты

Modern media are integrated into many spheres of society. Scientific discourse is also influenced by the objective process of mediatization. The aim of the article is to highlight important problems of mediatization of science by means of the Internet. The study is based on the analysis of scientific works by famous foreign and domestic authors on the topic of mediatization. The article outlines the main features of social media, which play an increasingly important role in popularizing scientific knowledge and in communication between scientists. The article notes the positive aspects of mediatization of science, and also identifies the following problems: inability to select a universal method of transmitting information; mythologization of scientific knowledge; infantilization of the audience; demonization of media discourses by the academic community; formation of a pseudoscientific functional style; the problem of discrepancy between the communicator and the recipient (dilettantism); creation of false meanings alien to science. The article may be of interest to researchers of mediatization of science and higher education, as well as managers in the field of science.

A Pressure- and Frequency-Dependent Multiscale Model for Describing the Wave Propagation Characteristics of Fluid-Saturated Porous Media

Abstract The mechanism of wave propagation in fluid-saturated porous media is influenced by pressure and frequency. Pressure dependence is mainly dominated by the opening and closing of compliant and stiff pores in rocks, as well as nonlinear deformation respect to high-order elastic constants. Frequency dependence is mainly reflected in the dispersion and attenuation caused by wave-induced fluid flow (WIFF). Therefore, the propagation characteristics of seismic waves in subsurface rocks when pressure and frequency are coupled have broad practical significance, such as geofluid discrimination and in situ stress detection. A new equivalent elastic modulus applicable to fluid-saturated porous media has been established, which simultaneously considers the effects of pressure and WIFF. First, the dual-porosity model is incorporated to account for the changes in rock porosity under pressure and corresponding linear and nonlinear deformations. Then, based on the heterogeneity of rock at the mesocale and microscale, a unified pressure- and frequency-dependent elastic modulus over a wide frequency band is established using the Zener model. The wave equation of fluid-saturated porous media is constructed using the new model, and the pressure- and frequency-dependent phase velocities are derived. Rock physics and digital simulation experiments are applied to analyze the variation of elastic parameters and velocity with pressure and frequency. Comparison with experimental measurement data shows that the new model has higher accuracy than traditional models, especially in the low effective pressure region and the frequency band respect to seismic exploration.

Social Media as an Effective Tool for Remote Services of Digital Libraries

The aim of the article is to reveal peculiarities of using social media (social networks, video hosting, etc.) as a modern toolkit of digital libraries in the context of the remote services development. Research methods. The methods of analysis and synthesis, logical, system-structural and comparative methods are applied, which contribute to systematising and generalising theoretical and methodological foundations of the remote services development of digital libraries; studying of popular practices of Ukrainian libraries in social media; identifying peculiarities of using different types of social media in library activities. The method of cognitive analysis is applied in order to highlight basic characteristics of social media as tools of remote services of digital libraries. Using the methods of deduction and generalisation contributes to the formulation of research conclusions. Scientific novelty. Features of applying various types of social media in library activity at the current stage are studied; the basic characteristics of social media as tools of remote services of digital libraries are clarified; the specifics of using social media (social networks, video hosting, podcasts, etc.) as a modern toolkit of digital libraries in the context of the development of remote services is clarified. The most effective types of social media in the context of the specifics of the remote services development of digital libraries in Ukraine are identified. Main conclusions. Having led to revolutionary changes in information and communication practice, social media becomes an integral part of library activity at the present stage. Social media provides libraries with an opportunity to engage users in multifaceted communication while promoting library services and resources beyond geographic boundaries and physical library spaces. Features of social media usage (social networks, video hosting, podcasts, etc.) as a modern toolkit of digital libraries in the context of the development of remote services are the following: promotion of services (notifications about news, relevant items from the collection and library events); connections with library users; provision of library programmes and services 24/7 regardless of territorial location; possibilities of creating corporate communication in order to improve the library service, etc.